Draeger, Inc. - DRA 6728651 - DT Pyridine 5/a (10)

Product Specific Information; Dräger Tubes - Pyridine 5/A, Short Term Tubes, 10 tests per box, Draeger P/N 6728651 Standard Measuring Range : 5 ppm Number of Strokes (n) : 20 An additional 5 strokes is takenin clean air after opening thesecond reagent ampoule. Time for Measurement : app. 20min Standard Deviation : ± 30 % Colour Change : white -> brown red Ambient Operating Conditions Temperature : 10 to 30 °C Absolute Humidity : 3 to 15 mg H2O / L Reaction Principle Pyridine + Aconitic acid + Acetic anhydride -> brown red reaction product Cross Sensitivity Ammonia in the TLV range does not interfere. Additional Information Before carrying out the measurement the lower reagent ampoulemust be broken and the liquid transferred to the indication layer sothat it is saturated. After performing 20 pump strokes, the upperreagent ampoule must be broken. The granular contents must beshaken out of the broken ampoule by gently tapping the side of thetube. The tube must be held vertically with the inlet of the tube upduring the 5 additional pump strokes.